diff --git a/sys/src/9/ip/devip.c b/sys/src/9/ip/devip.c
index 93a8514b4..74c83ea6d 100644
--- a/sys/src/9/ip/devip.c
+++ b/sys/src/9/ip/devip.c
@@ -1286,20 +1286,32 @@ retry:
 			c = malloc(sizeof(Conv));
 			if(c == nil)
 				error(Enomem);
-			qlock(c);
+			if(waserror()){
+				qfree(c->rq);
+				qfree(c->wq);
+				qfree(c->eq);
+				qfree(c->sq);
+				free(c->ptcl);
+				free(c);
+				nexterror();
+			}
 			c->p = p;
 			c->x = pp - p->conv;
 			if(p->ptclsize != 0){
 				c->ptcl = malloc(p->ptclsize);
-				if(c->ptcl == nil) {
-					free(c);
+				if(c->ptcl == nil)
 					error(Enomem);
-				}
 			}
+			c->eq = qopen(1024, Qmsg, 0, 0);
+			if(c->eq == nil)
+				error(Enomem);
+			(*p->create)(c);
+			if(c->rq == nil || c->wq == nil)
+				error(Enomem);
+			poperror();
+			qlock(c);
 			*pp = c;
 			p->ac++;
-			c->eq = qopen(1024, Qmsg, 0, 0);
-			(*p->create)(c);
 			break;
 		}
 		if(canqlock(c)){
diff --git a/sys/src/9/ip/ipifc.c b/sys/src/9/ip/ipifc.c
index cbc349b01..ffb1ad225 100644
--- a/sys/src/9/ip/ipifc.c
+++ b/sys/src/9/ip/ipifc.c
@@ -316,8 +316,10 @@ ipifccreate(Conv *c)
 	Ipifc *ifc;
 
 	c->rq = qopen(QMAX, 0, 0, 0);
-	c->sq = qopen(QMAX, 0, 0, 0);
 	c->wq = qopen(QMAX, Qkick, ipifckick, c);
+	c->sq = qopen(QMAX, 0, 0, 0);
+	if(c->rq == nil || c->wq == nil || c->sq == nil)
+		error(Enomem);
 	ifc = (Ipifc*)c->ptcl;
 	ifc->conv = c;
 	ifc->unbinding = 0;
diff --git a/sys/src/9/ip/netlog.c b/sys/src/9/ip/netlog.c
index 19f13f408..f07c3b961 100644
--- a/sys/src/9/ip/netlog.c
+++ b/sys/src/9/ip/netlog.c
@@ -85,8 +85,11 @@ netlogopen(Fs *f)
 		nexterror();
 	}
 	if(f->alog->opens == 0){
-		if(f->alog->buf == nil)
+		if(f->alog->buf == nil){
 			f->alog->buf = malloc(Nlog);
+			if(f->alog->buf == nil)
+				error(Enomem);
+		}
 		f->alog->rptr = f->alog->buf;
 		f->alog->end = f->alog->buf + Nlog;
 	}